Check number counter device for paper counting machine

Abstract

Herein disclosed is a check number counter device for use with a paper counting machine, by which sheets of paper are counted while being sucked and taken off (or deflected) one by one with the use of rotatable suction cylinder. The check number counter device includes an AND gate which is made responsive to both a coincidence signal indicating that the number checking operation is terminated and the operation terminating signal indicating that the operations of the suction cylinders are terminated so that it may generate a gate output, when it receives both the coincidence signal and the operation terminating signal, but may not generate the gate signal when it receives the latter signal but not the former signal. Further inclusive is a check number counter which is made responsive to the gate signal of the AND gate so that it may count the checked number.

What is claimed is: 
     
       1. In a paper counting machine, including: a suction cylinder for sucking to deflect sheets of paper one by one so that the latter may be counted,   a vacuum switch for controlling the operations of said suction cylinder for generating an operation terminating signal indicating when the operations of said suction cylinder are terminated,   counter means for counting the number of said deflected sheets until generation of said operation terminating signal, and generating a counter output, and   comparator means for comparing said counter output with a predetermined number, and issuing a coincidence signal when said counter output and said predetermined number coincide;   a check number counter device comprising:   AND gate means responsive to both said coincidence signal and the operation terminating signal of said vacuum switch for generating a gate output when both the coincidence signal and the operation terminating signal are received, and for not generating said gate output when both the coincidence signal and the operation terminating signal are not received; and   counter means responsive to the gate signal of said AND gate means for counting occurences thereof, whereby to count the number of coincidence signals.